3,423 reputation
523
bio website www34.homepage.villanova.edu/…
location Centro Habana
age 58
visits member for 2 years, 11 months
seen Nov 8 at 1:24

Haverford (mental institution) MIT (yet another) Tufts, Univ. of Utah (in East Berlin), Rutgers (near East Berlin, NJ), Villanova, Notre Dame, Univ. of New Hampshire, Hostos-CUNY, Queen's Univ. (Canadá).


Oct
12
awarded  Revival
Sep
30
awarded  Explainer
Jun
21
comment Why is the space-time interval squared?
Your newly edited answer is even more disorganised, and has a few (new?) errors: length is not a vector, it is a number, for example. As to the more important issues you ask about, they would require a whole nother answer, which I will try to provide later. Perhaps you should ask them as a separate question in its own right.
Jun
10
awarded  Tumbleweed
Jun
6
comment Is it possible to measure the radius of an elementary particle?
Is "radius" really well-defined? Don't you mean "effective radius" ?
Jun
6
comment Why is the application of probability in QM fundamentally different from application of probability in other areas?
The applications are very similar, except that amplification is not involved per se in Classical Stat Mech. By ignoring the Heisenberg uncertainty principle, Classical Stat MEch assumes that you really could track the trajectory of an individual molecule and calculate its time average. That does not make sense quantum mechanically, so that is a difference. But the meaning of probability is the same in both cases, the one not involving amplificaiton and the one involving amplification.
Jun
5
comment Why is the application of probability in QM fundamentally different from application of probability in other areas?
Not a good one. There are serious problems with that unjustifiably famous essay. The first one is, he does not get involved with the physics of a measurement process, so he never connects the observables with the Hamiltonian of an amplifier. The second one is, his axioms do not lead to any recognised mathematical theory of probability, in fact, his axioms violate the law of large numbers, etc. You can refer to my critique, "Remarks on an attempted axiomatisation of QM by Lucien Hardy", arXiv:quant-ph/0606038 just google on Axiomatisation of Physics (spell it with an esss, not a zed).
Jun
5
revised Why is the application of probability in QM fundamentally different from application of probability in other areas?
added 1320 characters in body
Jun
5
answered Why is the application of probability in QM fundamentally different from application of probability in other areas?
Jun
4
revised Speed of gravity
added 2 characters in body
Jun
4
comment Speed of gravity
gravitational waves travel at finite speed is the point.
Jun
4
answered Speed of gravity
Jun
3
answered If matter creates space, shouldn't there be experimentally detectable consequences?
Jun
3
comment About Hilbert and Physics
@mhodel Hilbert also discovered the Hilbert--Einstein action functional, whose minimisation yields the Einstein equation of General Relativity. He also worked on the foundational problem of what happens to causality in GR, and found a solution to his own satisfaction. Because of his interest in GR, he provoked Noether to prove her famous conservation--symmetry theorem, used all the time in Physics.
Jun
3
answered Is there a proof of existence of time?
Jun
3
comment Am I accelerating in the fourth dimension (time)?
¿How would you define "the rate at which time passes for you."? A rate has to be a ratio of one thing to another. ¿What are the two things here?
Jun
3
awarded  Organizer
Jun
3
reviewed Approve suggested edit on Under what conditions are the products of inertia (off diagonal elements of inertia tensor) non-zero?
Jun
3
revised About Hilbert and Physics
signal processing uses the Wiener-Khintchine theorem, and is highly relevant, too
Jun
3
answered About Hilbert and Physics